Proceedings from the International Telemetering Conference are made available by the International Foundation for Telemetering and the University of Arizona Libraries. Visit http://www.telemetry.org/index.php/contact-us if you have questions about items in this collection.

A satellite-mounted instrument has been developed to measure the energy spectrum
of the solar proton flux in the solar wind. The instrument consists of a sensor --- the
Faraday Cup, an analog signal processing chain, a high voltage modulator and a digital
section. This paper presents the digital section designed and built in our laboratory which
functions well to (a) interface with the main processor, (b) to provide the logic signals with
proper timing to the analog circuitry, (c) to deliver the necessary bit pattern to the high
voltage modulator, (d) to provide the calibration mode control signals when necessary, and
(e) to synchronize the sequence of events at the begining of every spacecraft rotation. As
with all space projects primary concerns beyond the logical functionality consistes of
circuit power consumption, instrumental mass, radiation tolerance levels, stability with
respect to temperature, and relative ease of component procurement. The NASA WIND
laboratory spacecraft that will carry the experiment is due to be launched in December of
1992 and eventually come to park in an orbit at the first Lagrangian point.

Proceedings from the International Telemetering Conference are made available by the International Foundation for Telemetering and the University of Arizona Libraries. Visit http://www.telemetry.org/index.php/contact-us if you have questions about items in this collection.

en

dc.publisher

International Foundation for Telemetering

en

dc.description.abstract

A satellite-mounted instrument has been developed to measure the energy spectrum
of the solar proton flux in the solar wind. The instrument consists of a sensor --- the
Faraday Cup, an analog signal processing chain, a high voltage modulator and a digital
section. This paper presents the digital section designed and built in our laboratory which
functions well to (a) interface with the main processor, (b) to provide the logic signals with
proper timing to the analog circuitry, (c) to deliver the necessary bit pattern to the high
voltage modulator, (d) to provide the calibration mode control signals when necessary, and
(e) to synchronize the sequence of events at the begining of every spacecraft rotation. As
with all space projects primary concerns beyond the logical functionality consistes of
circuit power consumption, instrumental mass, radiation tolerance levels, stability with
respect to temperature, and relative ease of component procurement. The NASA WIND
laboratory spacecraft that will carry the experiment is due to be launched in December of
1992 and eventually come to park in an orbit at the first Lagrangian point.

en

dc.description.sponsorship

International Foundation for Telemetering

en

dc.identifier.issn

0884-5123

-

dc.identifier.issn

0074-9079

-

dc.identifier.uri

http://hdl.handle.net/10150/611490

-

dc.identifier.journal

International Telemetering Conference Proceedings

en

dc.type

text

en

dc.type

Proceedings

en

dc.relation.url

http://www.telemetry.org/

en

All Items in UA Campus Repository are protected by copyright, with all rights reserved, unless otherwise indicated.